void fts2_getmirrorpositions(smfData* data, double* positions, int* size, int* status)
{
  if(*status != SAI__OK) { return; }

  char ftsMode[SZFITSTR];
  size_t count      = 0;    /* Size */
  HDSLoc* hdsLoc    = NULL; /* Pointer to HDS location */
  HDSLoc* hdsLocPos = NULL; /* Pointer to mirror positions */

  smf_fits_getS(data->hdr, "FTS_MODE", ftsMode, sizeof(ftsMode), status);
  if(strncmp(ftsMode, "FSCAN", 5) == 0 ) {
    hdsLoc = smf_get_xloc(data, "JCMTSTATE", "EXT", "READ", 0, 0, status);
    datFind(hdsLoc, "FTS_POS", &hdsLocPos, status);
    datSize(hdsLocPos, &count, status);
    datGetVD(hdsLocPos, count, positions, &count, status);
    *size = (int) count;
  } else if(strncmp(ftsMode, "STEPINT", 7) == 0 ) {
    *status = SAI__ERROR;
    errRep(FUNC_NAME, "STEPINT mode is NOT supported!", status);
  } else {
    *status = SAI__ERROR;
    errRep(FUNC_NAME, "Unknown Scan Mode is found!", status);
  }

  if(hdsLoc) { datAnnul(&hdsLoc, status); }
  if(hdsLocPos) { datAnnul(&hdsLocPos, status); }
}
示例#2
0
void smf_calc_mapcoord( ThrWorkForce *wf, AstKeyMap *config, smfData *data,
                        AstFrameSet *outfset, int moving, int *lbnd_out,
                        int *ubnd_out, fts2Port fts_port, int flags,
                        int *status ) {

  /* Local Variables */

  AstSkyFrame *abskyfrm = NULL;/* Output SkyFrame (always absolute) */
  AstMapping *bolo2map=NULL;   /* Combined mapping bolo->map coordinates */
  int bndndf=NDF__NOID;        /* NDF identifier for map bounds */
  void *data_pntr[1];          /* Array of pointers to mapped arrays in ndf */
  int *data_index;             /* Mapped DATA_ARRAY part of NDF */
  int docalc=1;                /* If set calculate the LUT */
  int doextension=0;           /* Try to write LUT to MAPCOORD extension */
  smfFile *file=NULL;          /* smfFile pointer */
  AstObject *fstemp = NULL;    /* AstObject version of outfset */
  int ii;                      /* loop counter */
  int indf_lat = NDF__NOID;    /* Identifier for NDF to receive lat values */
  int indf_lon = NDF__NOID;    /* Identifier for NDF to receive lon values */
  smfCalcMapcoordData *job_data=NULL; /* Array of job */
  int lbnd[1];                 /* Pixel bounds for 1d pointing array */
  int lbnd_old[2];             /* Pixel bounds for existing LUT */
  int lbnd_temp[1];            /* Bounds for bounds NDF component */
  int lutndf=NDF__NOID;        /* NDF identifier for coordinates */
  AstMapping *map2sky_old=NULL;/* Existing mapping map->celestial coord. */
  HDSLoc *mapcoordloc=NULL;    /* HDS locator to the MAPCOORD extension */
  int nw;                      /* Number of worker threads */
  AstFrameSet *oldfset=NULL;   /* Pointer to existing WCS info */
  AstSkyFrame *oskyfrm = NULL; /* SkyFrame from the output WCS Frameset */
  smfCalcMapcoordData *pdata=NULL; /* Pointer to job data */
  double *lat_ptr = NULL;      /* Pointer to array to receive lat values */
  double *lon_ptr = NULL;      /* Pointer to array to receive lon values */
  int ubnd[1];                 /* Pixel bounds for 1d pointing array */
  int ubnd_old[2];             /* Pixel bounds for existing LUT */
  int ubnd_temp[1];            /* Bounds for bounds NDF component */
  int *lut = NULL;             /* The lookup table */
  dim_t nbolo=0;               /* Number of bolometers */
  dim_t ntslice=0;             /* Number of time slices */
  int nmap;                    /* Number of mapped elements */
  AstMapping *sky2map=NULL;    /* Mapping celestial->map coordinates */
  size_t step;                 /* step size for dividing up work */
  AstCmpMap *testcmpmap=NULL;  /* Combined forward/inverse mapping */
  AstMapping *testsimpmap=NULL;/* Simplified testcmpmap */
  double *theta = NULL;        /* Scan direction at each time slice */
  int tstep;                   /* Time slices between full Mapping calculations */
  int exportlonlat;            /* Dump longitude and latitude values? */

  /* Main routine */
  if (*status != SAI__OK) return;

  /* How many threads do we get to play with */
  nw = wf ? wf->nworker : 1;

  /* Initialize bounds to avoid compiler warnings */
  lbnd_old[0] = 0;
  lbnd_old[1] = 0;
  ubnd_old[0] = 0;
  ubnd_old[1] = 0;

  /* Check for pre-existing LUT and de-allocate it. This will only waste
     time if the MAPCOORD extension is found to be valid and it has
     to be re-loaded from disk. */
  smf_close_mapcoord( data, status );

  /* Assert ICD data order */
  smf_dataOrder( data, 1, status );

  /* Get the data dimensions */
  smf_get_dims( data,  NULL, NULL, &nbolo, &ntslice, NULL, NULL, NULL, status );

  /* If SMF__NOCREATE_FILE is not set, and file associated with an NDF,
     map a new MAPCOORD extension (or verify an existing one) */

  if( !(flags & SMF__NOCREATE_FILE) && data->file ) {
    doextension = 1;
  } else {
    doextension = 0;
    docalc = 1;
  }

  /* Create / check for existing MAPCOORD extension */
  if( doextension ) {
    file = data->file;

    /* Check type of file before proceeding */
    if( file->isSc2store ) {
      *status = SAI__ERROR;
      errRep(FUNC_NAME,
             "File was opened by sc2store library (raw data?)",
             status);
    }

    if( !file->isTstream ) {
      *status = SAI__ERROR;
      errRep(FUNC_NAME,	"File does not contain time stream data",status);
    }

    /* Get HDS locator to the MAPCOORD extension */
    mapcoordloc = smf_get_xloc( data, "MAPCOORD", "MAP_PROJECTION", "UPDATE",
                                0, 0, status );

    /* Obtain NDF identifier/placeholder for LUT in MAPCOORD extension*/
    lbnd[0] = 0;
    ubnd[0] = nbolo*ntslice-1;
    lutndf = smf_get_ndfid( mapcoordloc, "LUT", "UPDATE", "UNKNOWN",
                            "_INTEGER", 1, lbnd, ubnd, status );

    if( *status == SAI__OK ) {
      /* store the NDF identifier */
      file->mapcoordid = lutndf;

      /* Create sky to output grid mapping using the base coordinates to
         get the coordinates of the tangent point if it hasn't been done
         yet. */
      sky2map = astGetMapping( outfset, AST__CURRENT, AST__BASE );
    }

    /* Before mapping the LUT, first check for existing WCS information
       and LBND/UBND for the output map. If they are already correct don't
       bother re-calculating the LUT! */

    if( *status == SAI__OK ) {

      /* Try reading in the WCS information */
      kpg1Wread( mapcoordloc, "WCS", &fstemp, status );
      oldfset = (AstFrameSet*)fstemp;

      if( *status == SAI__OK ) {

        /* Check that the old and new mappings are the same by
           checking that combining one with the inverse of the other
           reduces to a UnitMap. */

        map2sky_old = astGetMapping( oldfset, AST__BASE, AST__CURRENT );
        testcmpmap = astCmpMap( map2sky_old, sky2map, 1, " " );
        testsimpmap = astSimplify( testcmpmap );

        if( astIsAUnitMap( testsimpmap ) ) {

          /* The mappings are the same, now just check the pixel
             bounds in the output map */

          lbnd_temp[0] = 1;
          ubnd_temp[0] = 2;

          bndndf = smf_get_ndfid( mapcoordloc, "LBND", "READ", "UNKNOWN",
                                  "_INTEGER", 1, lbnd_temp, ubnd_temp,
                                  status );

          if( *status == SAI__OK ) {
            ndfMap( bndndf, "DATA", "_INTEGER", "READ", data_pntr, &nmap,
                    status );
            data_index = data_pntr[0];

            if( *status == SAI__OK ) {
              lbnd_old[0] = data_index[0];
              lbnd_old[1] = data_index[1];
            }
            ndfAnnul( &bndndf, status );
          }

          bndndf = smf_get_ndfid( mapcoordloc, "UBND", "READ", "UNKNOWN",
                                  "_INTEGER", 1, lbnd_temp, ubnd_temp,
                                  status );

          if( *status == SAI__OK ) {
            ndfMap( bndndf, "DATA", "_INTEGER", "READ", data_pntr, &nmap,
                    status );
            data_index = data_pntr[0];

            if( *status == SAI__OK ) {
              ubnd_old[0] = data_index[0];
              ubnd_old[1] = data_index[1];
            }
            ndfAnnul( &bndndf, status );
          }

          if( *status == SAI__OK ) {
            /* If we get this far finally do the bounds check! */
            if( (lbnd_old[0] == lbnd_out[0]) &&
                (lbnd_old[1] == lbnd_out[1]) &&
                (ubnd_old[0] == ubnd_out[0]) &&
                (ubnd_old[1] == ubnd_out[1]) ) {

              docalc = 0; /* We don't have to re-calculate the LUT */
              msgOutif(MSG__VERB," ",FUNC_NAME ": Existing LUT OK",
                       status);
            }
          }
        }

        /* Bad status / AST errors at this point due to problems with
           MAPCOORD. Annul and continue calculating new MAPCOORD extension. */
        astClearStatus;
        errAnnul(status);

      } else {
        /* Bad status due to non-existence of MAPCOORD. Annul and continue */
        errAnnul(status);
      }
    }

  }

  /* If we need to calculate the LUT do it here */
  if( docalc && (*status == SAI__OK) ) {
    msgOutif(MSG__VERB," ", FUNC_NAME ": Calculate new LUT",
             status);

    /* Get the increment in time slices between full Mapping calculations.
       The Mapping for intermediate time slices will be approximated. */
    dim_t dimval;
    smf_get_nsamp( config, "TSTEP", data, &dimval, status );
    tstep = dimval;

    /* Get space for the LUT */
    if( doextension ) {
      /* Map the LUT array */
      ndfMap( lutndf, "DATA", "_INTEGER", "WRITE", data_pntr, &nmap,
              status );
      data_index = data_pntr[0];
      if( *status == SAI__OK ) {
        lut = data_index;
      } else {
        errRep( FUNC_NAME, "Unable to map LUT in MAPCOORD extension",
                status);
      }
    } else {
      /* alloc the LUT and THETA arrays */
      lut = astMalloc( (nbolo*ntslice)*sizeof(*(data->lut)) );
      theta = astMalloc( ntslice*sizeof(*(data->theta)) );
    }


    /* Retrieve the sky2map mapping from the output frameset (actually
       map2sky) */
    oskyfrm = astGetFrame( outfset, AST__CURRENT );
    sky2map = astGetMapping( outfset, AST__BASE, AST__CURRENT );

    /* If the longitude and latitude is being dumped, create new NDFs to
       hold them, and map them. */
    if( config ) {
       astMapGet0I( config, "EXPORTLONLAT", &exportlonlat );
       if( exportlonlat ) {
          lon_ptr = smf1_calc_mapcoord1( data, nbolo, ntslice, oskyfrm,
                                         &indf_lon, 1, status );
          lat_ptr = smf1_calc_mapcoord1( data, nbolo, ntslice, oskyfrm,
                                         &indf_lat, 2, status );
       }
    }

    /* Invert the mapping to get Output SKY to output map coordinates */
    astInvert( sky2map );

    /* Create a SkyFrame in absolute coordinates */
    abskyfrm = astCopy( oskyfrm );
    astClear( abskyfrm, "SkyRefIs" );
    astClear( abskyfrm, "SkyRef(1)" );
    astClear( abskyfrm, "SkyRef(2)" );

    if( *status == SAI__OK ) {

      /* --- Begin parellelized portion ------------------------------------ */

      /* Start a new job context. Each call to thrWait within this
         context will wait until all jobs created within the context have
         completed. Jobs created in higher contexts are ignored by thrWait. */
      thrBeginJobContext( wf, status );

      /* Allocate job data for threads */
      job_data = astCalloc( nw, sizeof(*job_data) );
      if( *status == SAI__OK ) {

        /* Set up job data, and start calculating pointing for blocks of
           time slices in different threads */

        if( nw > (int) ntslice ) {
          step = 1;
        } else {
          step = ntslice/nw;
        }

        for( ii=0; (*status==SAI__OK)&&(ii<nw); ii++ ) {
          pdata = job_data + ii;

          /* Blocks of time slices */
          pdata->t1 = ii*step;
          pdata->t2 = (ii+1)*step-1;

          /* Ensure that the last thread picks up any left-over tslices */
          if( (ii==(nw-1)) && (pdata->t1<(ntslice-1)) ) {
            pdata->t2=ntslice-1;
          }

          pdata->ijob = -1;
          pdata->lut = lut;
          pdata->theta = theta;
          pdata->lbnd_out = lbnd_out;
          pdata->moving = moving;
          pdata->ubnd_out = ubnd_out;
          pdata->tstep = tstep;
          pdata->lat_ptr = lat_ptr;
          pdata->lon_ptr = lon_ptr;
          pdata->fts_port = fts_port;

          /* Make deep copies of AST objects and unlock them so that each
             thread can then lock them for their own exclusive use */

          pdata->abskyfrm = astCopy( abskyfrm );
          astUnlock( pdata->abskyfrm, 1 );
          pdata->sky2map = astCopy( sky2map );
          astUnlock( pdata->sky2map, 1 );

          /* Similarly, make a copy of the smfData, including only the header
             information which each thread will need in order to make calls to
             smf_rebin_totmap */

          pdata->data = smf_deepcopy_smfData( data, 0, SMF__NOCREATE_FILE |
                                              SMF__NOCREATE_DA |
                                              SMF__NOCREATE_FTS |
                                              SMF__NOCREATE_DATA |
                                              SMF__NOCREATE_VARIANCE |
                                              SMF__NOCREATE_QUALITY, 0, 0,
                                              status );
          smf_lock_data( pdata->data, 0, status );
        }

        for( ii=0; ii<nw; ii++ ) {
          /* Submit the job */
          pdata = job_data + ii;
          pdata->ijob = thrAddJob( wf, THR__REPORT_JOB, pdata,
                                     smfCalcMapcoordPar, 0, NULL, status );
        }

        /* Wait until all of the jobs submitted within the current job
           context have completed */
        thrWait( wf, status );
      }

      /* End the current job context. */
      thrEndJobContext( wf, status );

      /* --- End parellelized portion -------------------------------------- */

      /* Set the lut pointer in data to the buffer */
      data->lut = lut;
      data->theta = theta;

      /* Write the WCS for the projection to the extension */
      if( doextension ) {
        kpg1Wwrt( (AstObject*)outfset, "WCS", mapcoordloc, status );

        /* Write the pixel bounds for the map to the extension */

        lbnd_temp[0] = 1; /* Don't get confused! Bounds for NDF that will */
        ubnd_temp[0] = 2; /* contain the bounds for the output 2d map!    */

        bndndf = smf_get_ndfid( mapcoordloc, "LBND", "UPDATE", "UNKNOWN",
                                "_INTEGER", 1, lbnd_temp, ubnd_temp, status );

        ndfMap( bndndf, "DATA", "_INTEGER", "WRITE", data_pntr, &nmap,
                status );
        data_index = data_pntr[0];
        if( *status == SAI__OK ) {
          data_index[0] = lbnd_out[0];
          data_index[1] = lbnd_out[1];
        } else {
          errRep( FUNC_NAME, "Unable to map LBND in MAPCOORD extension",
                  status);
        }

        ndfAnnul( &bndndf, status );

        bndndf = smf_get_ndfid( mapcoordloc, "UBND", "UPDATE", "UNKNOWN",
                                "_INTEGER", 1, lbnd_temp, ubnd_temp, status );
        ndfMap( bndndf, "DATA", "_INTEGER", "WRITE", data_pntr, &nmap,
                status );
        data_index = data_pntr[0];
        if( *status == SAI__OK ) {
          data_index[0] = ubnd_out[0];
          data_index[1] = ubnd_out[1];
        } else {
          errRep( FUNC_NAME, "Unable to map UBND in MAPCOORD extension",
                  status);
        }
        ndfAnnul( &bndndf, status );
      }
    }
  }

  /* Clean Up */

  if( testsimpmap ) testsimpmap = astAnnul( testsimpmap );
  if( testcmpmap ) testcmpmap = astAnnul( testcmpmap );
  if( map2sky_old ) map2sky_old = astAnnul( map2sky_old );
  if( oldfset ) oldfset = astAnnul( oldfset );
  if (sky2map) sky2map  = astAnnul( sky2map );
  if (bolo2map) bolo2map = astAnnul( bolo2map );
  if( abskyfrm ) abskyfrm = astAnnul( abskyfrm );
  if( oskyfrm ) oskyfrm = astAnnul( oskyfrm );
  if( mapcoordloc ) datAnnul( &mapcoordloc, status );
  if( indf_lat != NDF__NOID ) ndfAnnul( &indf_lat, status );
  if( indf_lon != NDF__NOID ) ndfAnnul( &indf_lon, status );


  /* If we get this far, docalc=0, and status is OK, there must be
     a good LUT in there already. Map it so that it is accessible to
     the caller; "UPDATE" so that the caller can modify it if desired. */
  if( (*status == SAI__OK) && (docalc == 0) ) {
    smf_open_mapcoord( data, "UPDATE", status );
  }

  /* Clean up job data */
  if( job_data ) {
    for( ii=0; (*status==SAI__OK)&&(ii<nw); ii++ ) {
      pdata = job_data + ii;

      if( pdata->data ) {
        smf_lock_data( pdata->data, 1, status );
        smf_close_file( &(pdata->data), status );
      }
      astLock( pdata->abskyfrm, 0 );
      pdata->abskyfrm = astAnnul( pdata->abskyfrm );

      astLock( pdata->sky2map, 0 );
      pdata->sky2map = astAnnul( pdata->sky2map );
    }
    job_data = astFree( job_data );
  }

}
示例#3
0
HDSLoc * smf_get_smurfloc( const smfData * data, const char * accmode, int * status ) {
  if (*status != SAI__OK) return NULL;
  return smf_get_xloc( data, SMURF__EXTNAME, SMURF__EXTTYPE, accmode, 0, 0, status );
}
示例#4
0
void smf_calc_stareimage( smfData *data, const int naver, int *status) {

    double *avdata = NULL;           /* Pointer to averaged data */
    int dims[2];                     /* Dimensions of the stored image */
    smfHead *hdr;                    /* Header information */
    int j;                           /* Loop counter */
    size_t npts;                     /* Number of points in the averaged data */
    int numaver;                     /* Number of samples to average */
    int numimages;                   /* Number of output STARE images */
    int numsamples;                  /* Number of time slices (samples) */
    int remainder;                   /* Remainder from dividing no of timeslices
				      by number of frames to average */
    HDSLoc *scu2redloc = NULL;       /* Locator to SCU2RED extension */
    double steptime;                 /* Step time per sample, sec */
    double *zero = NULL;             /* Bolometer zero points */

    if ( *status != SAI__OK ) return;

    /* Check we have time-series data */
    if ( data->ndims != 3) {
        *status = SAI__ERROR;
        errRep(FUNC_NAME,
               "File does not contain time series data - unable to process",
               status);
        return;
    }

    /* Check we have flatfielded data */
    if ( !smf_history_check( data, "smf_flatfield", status) ) {
        if ( *status == SAI__OK ) {
            *status = SAI__ERROR;
            errRep(FUNC_NAME, "Data have not been flatfielded ", status);
            return;
        }
    }

    /* Do we have STARE data? */
    hdr = data->hdr;
    if ( hdr->obsmode == SMF__OBS_STARE ) {
        msgOutif(MSG__VERB," ", "Processing STARE data", status);

        if (smf_history_check( data, "smf_calc_stareimage", status) ) {
            msgOut(" ", "File contains STARE data which has already been processed: proceeding but this WILL OVERWRITE any STARE images already written into the SCU2RED extension",
                   status);
        }

        /* Number of output STARE images */
        numsamples = (data->dims)[2];

        /* If naver < 0 then re-calculate to give 1-second images */
        if ( naver < 0 ) {
            smf_fits_getD(hdr, "STEPTIME", &steptime, status);
            numaver = 1.0 / steptime;
        } else if ( naver > numsamples ) {
            msgOutif(MSG__NORM, "", "Warning: NAVER exceeds the number of samples - will average entire time stream to create a single image", status);
            numaver = numsamples;
        } else {
            numaver = naver;
        }

        numimages = numsamples / numaver;

        /* Warn user if the number to average is not a factor of the
           number of time slices  */
        remainder = numsamples % numaver;
        if ( remainder != 0 ) {
            msgSeti("R", remainder);
            msgSeti("N", numaver);
            msgSeti("T", numsamples);
            msgOutif(MSG__NORM, "", "Warning: NAVER (^N) is not a factor of the number of time slices (^T): final ^R samples will not be included in an image", status);
        }

        /* Helpful info for the user */
        msgSeti("N",numimages);
        if ( numimages == 1 ) {
            msgSetc("IM","image");
        } else {
            msgSetc("IM","images");
        }
        msgOutif( MSG__VERB, "", "Calculating ^N STARE ^IM", status );

        /* Obtain a locator for the extension where for the images will
           be stored */
        scu2redloc = smf_get_xloc(data, "SCU2RED", "SCUBA2_MAP_ARR", "WRITE",
                                  0, NULL, status);

        /* Set the dimensions of the output images - they are all the same
           so they can be safely set outside the loop below */
        dims[0] = (data->dims)[0];
        dims[1] = (data->dims)[1];

        /* Loop over the number of output images */
        for ( j=0; j<numimages; j++) {
            /* Average the time stream data over the desired interval */
            smf_average_dataD( data, j*numaver, numaver, 1, &avdata, &npts, status );

            /* Store the averaged data as an image */
            smf_store_image( data, scu2redloc, j, 2, dims, numaver, 0, 0, avdata, NULL,
                             status);

            avdata = astFree( avdata );
            zero = astFree( zero );
        }
        /* Add a history entry if everything's OK */
        smf_history_add(data, "smf_calc_stareimage",  status );

        /* Release SCU2RED locator */
        datAnnul( &scu2redloc, status );
    } else {
        msgOutif(MSG__NORM," ",
                 "Input file is not a STARE observation - ignoring", status);
    }

}